JP2009104913A - Lighting apparatus, and emergency light - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus which has a light distribution in which a prescribed brightness can be obtained easily in a longitudinal direction, and to provide an emergency light. <P>SOLUTION: The lighting apparatus is equipped with a light source part 13 consisting of a semiconductor light-emitting element 11 and a lens body 12 which is formed so as to emit from an emitting face divided into a main distribution light A and an auxiliary distribution light B, a first light-emitting part 15 consisting of a reflector 14 which reflects so that the auxiliary distribution light of the light source part may be superimposed on the main distribution light and extends the main distribution light in the optical axis direction, a second light-emitting part 17 consisting of a reflector 17 which reflects a part of auxiliary distribution light of the light source part to the other auxiliary light distribution side, an apparatus main body 18 in which the first light-emitting part and the second light-emitting are installed so that at least the main distribution light of the first light-emitting part may be located at the outside than the main distribution light of the second light-emitting part in the longitudinal direction of the irradiation face, and a lighting device 20 to light the semiconductor light-emitting element. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、発光ダイオード等の半導体発光素子を光源とした照明器具および非常灯に関する。   The present invention relates to a lighting apparatus and an emergency light using a semiconductor light emitting element such as a light emitting diode as a light source.

この種の照明器具、特にダウンライトや非常灯などにおいては、発光ダイオードから放射された光が所定の方向に照射されるようにレンズ等の光制御体を備えた照明器具が提案されている。例えば、特許文献１には、３個の直線上に配設されている発光ダイオードと、比較的広角の配光が得られるように形成されている第１および第２のレンズと、比較的狭角の配光が得られる第３のレンズにより、照度むらを抑制して広範囲を照明するＬＥＤ照明器具およびＬＥＤ非常灯が提案されている。この従来技術は、第１および第２のレンズにより、それぞれ比較的広角の配光で照明し、第３のレンズにより、第１および第２のレンズのそれぞれの光軸の延長線間で比較的狭角の配光で照明することにより、器具本体から出射される照明光により照明される領域を広くすることができ、照明領域を略一定の明るさにできるというものである。   In this type of lighting equipment, particularly downlights and emergency lights, lighting equipment including a light control body such as a lens has been proposed so that light emitted from a light emitting diode is irradiated in a predetermined direction. For example, in Patent Document 1, light emitting diodes arranged on three straight lines, first and second lenses formed so as to obtain a relatively wide-angle light distribution, and relatively narrow An LED lighting apparatus and an LED emergency light that illuminate a wide area by suppressing unevenness in illuminance by using a third lens capable of obtaining angular light distribution have been proposed. In this prior art, the first and second lenses each illuminate with a relatively wide-angle light distribution, and the third lens relatively moves between the extended lines of the optical axes of the first and second lenses. By illuminating with a narrow-angle light distribution, the area illuminated by the illumination light emitted from the instrument body can be widened, and the illumination area can be made to have a substantially constant brightness.

また、特許文献２には、それぞれ入射端が凹面、出射端が略平面、側面の中間部が太い形状の曲面であって、かつ中心軸に対する断面が円状となるように形成され、入射端に入射された光が側面の内表面で全反射し、出射端で中心軸から遠ざかる方向に屈折して出射されるように形成されているレンズと、このレンズの入射端側に配設された発光ダイオードで構成されたＬＥＤ照明器具およびＬＥＤ非常灯が提案されている。この従来技術は、鉛直方向に対するバットウイング状の配光が得られ、器具の直下および周囲の照度を確保することが可能となるというものである。   Further, Patent Document 2 is formed such that the incident end is a concave surface, the output end is a substantially flat surface, the middle portion of the side surface is a thick curved surface, and the cross section with respect to the central axis is circular. The lens is formed so that the light incident on the side is totally reflected on the inner surface of the side surface and refracted in the direction away from the central axis at the exit end, and disposed on the entrance end side of the lens. LED lighting fixtures and LED emergency lights composed of light emitting diodes have been proposed. According to this prior art, a bat wing-like light distribution in the vertical direction is obtained, and it is possible to secure the illuminance directly below and around the instrument.

一方、天井に直付けまたは埋め込まれるダウンライト形の照明器具や非常灯においては、一般に、器具直下から所定の範囲の床面に対して一定値以上の照度（明るさ）が求められている。このためには、器具が広角な配光特性を有する必要がある。特に、非常灯においては、１１ｘ（ルクス）以上の明るさで、広角的な配光が求められている。
特開２００７−２３４４０３号公報 特開２００５−１２９５１７号公報 On the other hand, in downlight-type lighting fixtures and emergency lights that are directly attached to or embedded in the ceiling, generally, an illuminance (brightness) of a certain value or more is required for a floor surface within a predetermined range from directly below the fixture. For this purpose, the instrument needs to have a wide-angle light distribution characteristic. In particular, emergency lights are required to have a wide-angle light distribution with a brightness of 11x (lux) or more.
JP 2007-234403 A JP 2005-129517 A

特許文献１のＬＥＤ照明器具および非常灯は、比較的広角の配光を得るための第１および第２のレンズと、比較的狭角の配光を得るための第３のレンズの組み合わせにより、照明される領域を広くし、照明領域を略一定の明るさにできるが、基本的に照射パターンは円形に近いものであり、廊下や通路など長手方向にだけに光が必要な場合には、短手方向の光が余り無駄となっている。このため、長手方向の明るさが不足し、器具の配置間隔をさらに広くするには限界があり設置台数のさらなる削減は困難な状況となっている。また、光を制御するためのレンズ体として、比較的広角の配光を得るための第１および第２のレンズと、比較的狭角の配光を得るための第３のレンズの２種類のレンズが必要となり器具のコストアップ要因にもなる。   The LED lighting fixture and emergency light of Patent Document 1 are a combination of the first and second lenses for obtaining a relatively wide-angle light distribution and the third lens for obtaining a relatively narrow-angle light distribution, The illuminated area can be widened and the illuminated area can be made almost constant brightness, but basically the irradiation pattern is almost circular, and when light is needed only in the longitudinal direction such as corridors and passages, The light in the short direction is wasted too much. For this reason, the brightness in the longitudinal direction is insufficient, and it is difficult to further reduce the number of installed devices because there is a limit to further widening the arrangement interval of the instruments. In addition, as a lens body for controlling light, there are two types of lenses: a first lens and a second lens for obtaining a relatively wide-angle light distribution, and a third lens for obtaining a relatively narrow-angle light distribution. A lens is required, which increases the cost of the equipment.

また、特許文献２のＬＥＤ照明器具および非常灯は、鉛直方向に対するバットウイング状の配光が得られ、器具の直下および周囲の照度を確保することが可能となるが、特許文献１と同様に基本的に照射パターンは円形に近いものであり、廊下や通路など長手方向にだけに光が必要な場合には、短手方向の光が余り無駄となっている。特に直下および周囲の照度を確保するものであり、一層長手方向の明るさが不足し、設置台数のさらなる削減はより一層困難な状況となる。また、レンズ体は入射端が凹面、出射端が略平面、側面の中間部が太い形状の曲面であって、かつ中心軸に対する断面が円状となるように形成される特殊な構成のものが必要となり加工が困難でコストアップ要因になる。   In addition, the LED lighting apparatus and the emergency light of Patent Document 2 can obtain a bat wing-like light distribution in the vertical direction, and can ensure the illuminance directly below and around the apparatus. Basically, the irradiation pattern is nearly circular, and when light is required only in the longitudinal direction, such as in a corridor or a passage, light in the short direction is wasted. In particular, the illuminance just below and around is ensured, the brightness in the longitudinal direction is further insufficient, and further reduction in the number of installed units becomes even more difficult. In addition, the lens body has a special configuration in which the incident end is a concave surface, the output end is a substantially flat surface, the middle portion of the side surface is a thick curved surface, and the cross section with respect to the central axis is circular. It becomes necessary and difficult to process, resulting in a cost increase.

本発明は、長手方向に沿い所定の明るさを確保し易い配光を有する照明器具および非常灯を提供することを目的とする。   An object of this invention is to provide the lighting fixture and emergency light which have light distribution which is easy to ensure predetermined | prescribed brightness along a longitudinal direction.

請求項１に記載の照明器具の発明は、半導体発光素子と、入射面および出射面を有し、入射面に入射する半導体発光素子の放射光を、光軸方向に沿う主配光と主配光とは異なる方向に光度ピークを有する補助配光とに分離した状態で出射面から出射されるように形成されるレンズ体からなる光源部と；前記光源部と、光源部の補助配光が主配光に重畳するように反射させ主配光を光軸方向に延長させる反射体からなる第１発光部と；前記光源部と、光源部の補助配光の一部を他方の補助配光側に反射させる反射体からなる第２発光部と；開口部を有し、この開口部に第１発光部および第２発光部を略直線状に配置し、照射面の長手方向に対して少なくとも第１発光部の主配光が第２発光部の主配光よりも外側に位置するように配設した器具本体と；前記半導体発光素子を点灯させる点灯装置と；を具備することを特徴とする。   The invention of the lighting apparatus according to claim 1 has a semiconductor light emitting element, an incident surface and an exit surface, and the emitted light of the semiconductor light emitting element incident on the incident surface is divided into main light distribution and main distribution along the optical axis direction. A light source unit comprising a lens body formed so as to be emitted from the exit surface in a state of being separated into an auxiliary light distribution having a luminous intensity peak in a direction different from the light; and the auxiliary light distribution of the light source unit and the light source unit A first light-emitting unit made of a reflector that reflects the main light distribution so as to be superimposed on the main light distribution, and extends the main light distribution in the direction of the optical axis; A second light emitting portion made of a reflector to be reflected to the side; an opening, the first light emitting portion and the second light emitting portion are arranged substantially linearly in the opening, and at least with respect to the longitudinal direction of the irradiation surface The instrument book arranged so that the main light distribution of the first light emitting unit is located outside the main light distribution of the second light emitting unit If, characterized by comprising a; and the semiconductor light emitting element lighting device for lighting a.

本発明の照明器具は、光源部の補助配光が主配光に重畳するように反射させ主配光を光軸方向に延長させる反射体からなる第１発光部と、光源部の補助配光の一部を他方の補助配光側に反射させる反射体からなる第２発光部と、開口部を有し、この開口部に第１発光部および第２発光部を略直線状に配置し、照射面の長手方向に対して少なくとも第１発光部の主配光が第２発光部の主配光よりも外側に位置するように配設した器具本体により、長手方向に沿い所定の明るさを確保し易くなる。   The luminaire of the present invention includes a first light-emitting unit made of a reflector that reflects the auxiliary light distribution of the light source unit so as to overlap the main light distribution and extends the main light distribution in the optical axis direction, and the auxiliary light distribution of the light source unit. A second light-emitting part made of a reflector that reflects a part of the second light-emitting side to the other auxiliary light distribution side, and an opening, and the first light-emitting part and the second light-emitting part are arranged substantially linearly in the opening, A predetermined brightness along the longitudinal direction is obtained by the instrument body disposed so that at least the main light distribution of the first light emitting unit is located outside the main light distribution of the second light emitting unit with respect to the longitudinal direction of the irradiation surface. It becomes easy to secure.

本発明において、照明器具は、廊下や通路など長手方向に所定の明るさを必要とする場所に設置される照明器具が好適であるが、これらに限らず、広い店舗などで長手方向に所定の明るさが必要な場所に設置されるなど全ての照明器具に適用される。またダウンライト等、埋込形の照明器具であっても、直付け形や天吊り形等、他の設置手段で設置される照明器具であってもよい。   In the present invention, the luminaire is preferably a luminaire that is installed in a place that requires a predetermined brightness in the longitudinal direction, such as a corridor or a passage. It applies to all lighting fixtures such as being installed in places where brightness is required. Further, it may be an embedded lighting fixture such as a downlight, or a lighting fixture installed by other installation means such as a direct mounting type or a ceiling hanging type.

半導体発光素子は、発光ダイオードや半導体レーザーなど、半導体を発光源とした発光素子が許容される。また半導体発光素子は、１個の半導体発光素子を基板に配設して構成しても、複数個の半導体発光素子を直線または曲線等をなして配設し線モジュールとして構成しても、半導体発光素子をマトリックス状に配設して矩形状をなすように構成しても、さらには、複数個の半導体発光素子により点モジュールを構成するように円板状に構成してもよく、個数および配設される形状等は特定のものに限定されない。   As the semiconductor light emitting element, a light emitting element using a semiconductor as a light source, such as a light emitting diode or a semiconductor laser, is allowed. The semiconductor light emitting element may be configured by arranging one semiconductor light emitting element on a substrate, or may be configured as a line module by arranging a plurality of semiconductor light emitting elements in a straight line or a curve. The light emitting elements may be arranged in a matrix shape so as to form a rectangular shape, or may be configured in a disk shape so as to form a point module with a plurality of semiconductor light emitting elements. The shape etc. which are arrange | positioned are not limited to a specific thing.

レンズ体は、入射面に入射する半導体発光素子の放射光を、光軸方向に沿う主配光と主配光とは異なる方向に光度ピークを有する補助配光とに分離した状態で出射面から出射されるように形成される光制御体で、透明なガラスまたはアクリル等の合成樹脂で形成されていてもよい。   The lens body separates the emitted light of the semiconductor light emitting element incident on the incident surface from the emission surface in a state of being separated into a main light distribution along the optical axis direction and an auxiliary light distribution having a luminous intensity peak in a direction different from the main light distribution. The light control body is formed so as to be emitted, and may be formed of transparent glass or synthetic resin such as acrylic.

第１発光部と第２発光部の光源部は、例えば、それぞれ２個の光源部により構成し、器具の両側からそれぞれの長手方向に沿う所定の配光を得られるようにすることが好ましいが、それぞれ１個の光源部により器具の片側のみから一方の長手方向に沿う所定の配光を得るようにしてもよい。また、第１発光部と第２発光部を構成する光源部は同様の性能、配光特性等を有する共通の部品からなる半導体発光素子およびレンズ体で構成されていても、それぞれが必要とする格別の性能、配光特性等を有する別個の部品で構成されていてもよい。   It is preferable that the light source units of the first light emitting unit and the second light emitting unit are constituted by, for example, two light source units, respectively, so that predetermined light distribution along each longitudinal direction can be obtained from both sides of the instrument. Each of the light sources may obtain a predetermined light distribution along one longitudinal direction from only one side of the instrument. Further, the light source parts constituting the first light emitting part and the second light emitting part are required even if they are composed of a semiconductor light emitting element and a lens body made of common parts having the same performance, light distribution characteristics, etc. You may be comprised by the separate components which have exceptional performance, a light distribution characteristic, etc.

第１発光部の反射体は、光源部の補助配光が主配光に重畳するように反射させ主配光を光軸方向に延長させるための光制御体であり、また、第２発光部の反射体は、光源部の補助配光の一部を他方の補助配光側に反射させる光制御体で、第１、第２発光部のそれぞれの反射体は、ＰＢＴ（ポリブチレンテレフタレート）等の白色の合成樹脂で構成してもアルミニウムやステンレス等の金属で構成してもよい。さらに上記合成樹脂や金属に鏡面または半鏡面加工等を施して形成したものであってもよい。反射体は、光源部を支持する支持体と一体に形成されても、または支持体とは別体に構成されていてもよい。また、第１、第２発光部のそれぞれの反射体は同一の材料で構成されていても別の材料で構成されていてもよく、さらに、それぞれの反射体が一体に構成されていても、別体に構成されていてもよい。   The reflector of the first light emitting unit is a light control body for reflecting the auxiliary light distribution of the light source unit so as to overlap the main light distribution and extending the main light distribution in the optical axis direction, and the second light emitting unit. The reflector is a light control body that reflects a part of the auxiliary light distribution of the light source unit to the other auxiliary light distribution side, and each of the reflectors of the first and second light emitting units is PBT (polybutylene terephthalate) or the like. Or a white synthetic resin or a metal such as aluminum or stainless steel. Further, it may be formed by applying a mirror surface or semi-mirror surface processing to the above synthetic resin or metal. The reflector may be formed integrally with the support that supports the light source unit, or may be configured separately from the support. In addition, the reflectors of the first and second light emitting units may be made of the same material or different materials, and further, the reflectors may be integrally formed. It may be configured separately.

請求項２に記載の発明は、請求項１記載の照明器具において、前記第２発光部は、器具本体の開口部の略中央部に鉛直線を中心にして左右に所定の角度を有して配置し、第１発光部は、第２発光部の両側に対して器具本体の開口部の外側に配置し、かつ鉛直線に対し左右に所定の角度を有して配置したことを特徴とする。   According to a second aspect of the present invention, in the lighting fixture according to the first aspect, the second light emitting portion has a predetermined angle on the left and right with a vertical line as a center at a substantially central portion of the opening of the fixture main body. The first light emitting unit is disposed outside the opening of the instrument main body with respect to both sides of the second light emitting unit, and arranged at a predetermined angle on the left and right with respect to the vertical line. .

本発明において、第１、第２発光部が配置される所定の角度は、第１発光部の角度を広くし、第２発光部の角度を狭くして、照射面の長手方向に沿い所定の明るさを確保し易い配光を得るようにすることが好ましいが、両者の角度を同一にしても、または逆に第１発光部の角度を狭くし、第２発光部の角度を広くしてもよい。   In the present invention, the predetermined angle at which the first and second light emitting units are arranged is a predetermined angle along the longitudinal direction of the irradiation surface by increasing the angle of the first light emitting unit and narrowing the angle of the second light emitting unit. It is preferable to obtain a light distribution that facilitates ensuring brightness, but even if both angles are the same, or conversely, the angle of the first light emitting unit is narrowed and the angle of the second light emitting unit is widened. Also good.

請求項３に記載の発明は、請求項１または２記載の照明器具において、前記開口部の開口面に沿って透過性カバーを有し、前記透過性カバーと、前記第１、第２発光部の光軸とが３０°〜９０°の角度を有して配置したことを特徴とする。   According to a third aspect of the present invention, in the lighting apparatus according to the first or second aspect, the transmissive cover has a transmissive cover along the opening surface of the opening, and the transmissive cover and the first and second light emitting units are provided. And an optical axis of 30 ° to 90 °.

請求項４に記載の非常灯の発明は、請求項１ないし３いずれか一記載の照明器具と；器具本体に収容されたバッテリと；停電時に、バッテリからの直流電圧が入力されて半導体発光素子を点灯させる非常用点灯装置と；を具備することを特徴とする。   According to a fourth aspect of the present invention, there is provided the lighting device according to any one of the first to third aspects; a battery housed in the main body of the lighting device; and a semiconductor light emitting device in which a DC voltage is input from the battery during a power failure And an emergency lighting device for lighting the lamp.

本発明の非常灯は、停電時に、非常用点灯装置により半導体発光素子が点灯され、長手方向に所定の明るさを確保し易くなる。   In the emergency light of the present invention, when a power failure occurs, the semiconductor light emitting element is turned on by the emergency lighting device, and it becomes easy to ensure a predetermined brightness in the longitudinal direction.

本発明において、非常灯は、廊下や通路など長手方向に所定の明るさを必要とする場所に設置される非常灯であることが好ましいが、設置場所は特に限定されない。また設置する手段は、埋込形であっても、直付け形であってもよい。   In the present invention, the emergency light is preferably an emergency light installed in a place that requires a predetermined brightness in the longitudinal direction, such as a hallway or a passage, but the installation location is not particularly limited. Further, the means for installing may be an embedded type or a directly attached type.

請求項１記載の発明によれば、光源部の補助配光が主配光に重畳するように反射させ主配光を光軸方向に延長させる反射体からなる第１発光部と、光源部の補助配光の一部を他方の補助配光側に反射させる反射体からなる第２発光部と、開口部を有し、この開口部に第１発光部および第２発光部を略直線状に配置し、照射面の長手方向に対して少なくとも第１発光部の主配光が第２発光部の主配光よりも外側に位置するように配設した器具本体により、長手方向に所定の明るさを確保し易い配光を有する照明器具を提供することができる。   According to the first aspect of the present invention, the first light emitting unit made of a reflector that reflects the auxiliary light distribution of the light source unit so as to overlap the main light distribution and extends the main light distribution in the optical axis direction, and the light source unit A second light-emitting portion made of a reflector that reflects a part of the auxiliary light distribution toward the other auxiliary light distribution side, and an opening, and the first light-emitting portion and the second light-emitting portion are substantially linearly formed in the opening. And a predetermined brightness in the longitudinal direction by an instrument main body disposed so that at least the main light distribution of the first light emitting unit is located outside the main light distribution of the second light emitting unit with respect to the longitudinal direction of the irradiation surface. It is possible to provide a luminaire having a light distribution that is easy to ensure.

請求項２記載の発明によれば、第２発光部は、器具本体の開口部の略中央部に鉛直線を中心にして左右に所定の角度を有して配置し、第１発光部は、第２発光部の両側に対して器具本体の開口部の外側に配置し、かつ鉛直線に対し左右に所定の角度を有して配置したことにより、器具の両側からそれぞれの長手方向に沿い所定の明るさを確保し易い配光を有する照明器具を提供することができる。   According to invention of Claim 2, a 2nd light emission part is arrange | positioned in the approximate center part of the opening part of an instrument main body with a predetermined angle on either side centering | focusing on a perpendicular line, The 1st light emission part is By arranging it on the outside of the opening of the instrument body with respect to both sides of the second light emitting part and having a predetermined angle to the left and right with respect to the vertical line, it is predetermined along the longitudinal direction from both sides of the instrument. It is possible to provide a luminaire having a light distribution that can easily ensure the brightness of the light.

請求項３記載の発明によれば、開口部の開口面に沿って透過性カバーを有し、透過性カバーと、第１、第２発光部の光軸とが３０°〜９０°の角度を有して配置したことにより、透過性カバー内面での反射を最小限にとどめ、高効率な照明器具を提供することができる。   According to invention of Claim 3, it has a transparent cover along the opening surface of an opening part, and the optical axis of a transparent cover and a 1st, 2nd light emission part makes an angle of 30 degrees-90 degrees. By having it arranged, reflection on the inner surface of the transmissive cover can be minimized and a highly efficient lighting apparatus can be provided.

請求項４記載の発明によれば、停電時に、非常用点灯装置により半導体発光素子が点灯され、長手方向に所定の明るさを確保し易い配光を有する非常灯を提供することができる。   According to the fourth aspect of the present invention, it is possible to provide an emergency light having a light distribution in which the semiconductor light emitting element is turned on by the emergency lighting device at the time of a power failure and the predetermined brightness is easily secured in the longitudinal direction.

以下、本発明に係る照明器具および非常灯の実施形態について説明する。   Hereinafter, embodiments of a lighting fixture and an emergency light according to the present invention will be described.

本実施例は、廊下や通路の天井に設置される非常灯を構成したもので、図１に示すように、非常灯１０は、半導体発光素子１１とレンズ体１２からなる光源部１３、光源部１３と反射体１４からなる第１発光部１５、光源部１３と反射体１６からなる第２発光部１７、第１発光部および第２発光部を配設した器具本体１８、器具本体に収容されたバッテリ１９、停電時に、バッテリからの直流電圧が入力されて半導体発光素子を点灯させる非常用の点灯装置２０で構成する。   In this embodiment, an emergency light is installed on the ceiling of a corridor or a passage. As shown in FIG. 1, the emergency light 10 includes a light source unit 13 including a semiconductor light emitting element 11 and a lens body 12, and a light source unit. 13 and the first light emitting part 15 comprising the reflector 14, the second light emitting part 17 comprising the light source part 13 and the reflector 16, the instrument main body 18 provided with the first light emitting part and the second light emitting part, and the instrument main body. The battery 19 is composed of an emergency lighting device 20 that inputs a DC voltage from the battery and turns on the semiconductor light emitting element in the event of a power failure.

半導体発光素子１１は、発光ダイオード（以下「ＬＥＤ」と称す）で構成し、ＬＥＤ１１は、本実施形態では青色ＬＥＤチップとこの青色ＬＥＤチップにより励起される黄色蛍光体により白色を発光する高輝度、高出力のＬＥＤからなり、このＬＥＤ１１は、一方向、すなわちＬＥＤの光軸ｏ−ｏ方向に光線が主として放射される。また、ＬＥＤ１１は矩形状をなす回路基板からなる基板１１ａ上に実装されて支持されている。ここで光軸ｏ−ｏは、ＬＥＤ１１が実装される基板１１ａの面に対して略鉛直方向のことである。   The semiconductor light emitting element 11 is composed of a light emitting diode (hereinafter referred to as “LED”), and the LED 11 in this embodiment has a high luminance that emits white light by a blue LED chip and a yellow phosphor excited by the blue LED chip. The LED 11 is composed of a high-power LED, and light is mainly emitted in one direction, that is, the direction of the optical axis oo of the LED. The LED 11 is mounted and supported on a substrate 11a made of a rectangular circuit board. Here, the optical axis oo is substantially perpendicular to the surface of the substrate 11a on which the LEDs 11 are mounted.

レンズ体１２は、例えば、強化ガラスからなり、図４（ａ）に示すように入射面１２ａと出射面１２ｂを有する皿状をなす凸レンズで構成され、入射面の中央部に凹部１２ｃが形成され、出射面が略半球状をなすように形成されている。レンズ体１２は図４に示すように、入射面である凹部１２ｃにＬＥＤ１１を収納する。この際、ＬＥＤ１１の光軸ｏ−ｏと、レンズ体１２の光軸ｘ−ｘが略一致するように配設されて収納され、両端に形成された支持部１２ｄを基板１１ａにネジ等の固定手段で固着される。これにより、ＬＥＤ１１とレンズ体１２からなる光源部１３が構成される。   The lens body 12 is made of, for example, tempered glass, and is constituted by a convex lens having a dish shape having an entrance surface 12a and an exit surface 12b as shown in FIG. 4A. A recess 12c is formed at the center of the entrance surface. The emission surface is formed in a substantially hemispherical shape. As shown in FIG. 4, the lens body 12 houses the LED 11 in a concave portion 12 c that is an incident surface. At this time, the optical axis oo of the LED 11 and the optical axis xx of the lens body 12 are disposed and housed so as to substantially coincide, and the support portions 12d formed at both ends are fixed to the substrate 11a with screws or the like. Secured by means. Thereby, the light source part 13 which consists of LED11 and the lens body 12 is comprised.

光源部１３は、ＬＥＤ１１を点灯するとレンズ体１２により、図８に示すような配光特性をもって出射面１２ｂから光を出射する。すなわち、出射面１２ｂから出射されるＬＥＤ１１の放射光により光軸ｏ−ｏ方向に沿う主配光Ａと、主配光とは異なる方向に光度ピークを有する主配光Ａの出射端から両側斜め方向に沿う補助配光Ｂ、Ｂとに分離した状態で出射面１２ｂから出射される。   When the LED 11 is turned on, the light source unit 13 emits light from the emission surface 12b with the light distribution characteristic as shown in FIG. That is, both sides of the main light distribution A along the optical axis oo direction and the main light distribution A having a luminous intensity peak in a direction different from the main light distribution from the emission end of the LED 11 emitted from the emission surface 12b are oblique to both sides. The light is emitted from the emission surface 12b in a state of being separated into auxiliary light distributions B and B along the direction.

第１発光部１５は、上記のようにＬＥＤ１１とレンズ体１２で構成され上記の配光特性を有する左右２個の光源部１３と、２個の光源部にそれぞれ対応して配設される左右２個の反射体１４とで構成する。２個の反射体１４は、略回転放物面をなす反射面１４ａを有するラッパ状の反射体を、反射体の光軸ｙ−ｙを境にして半分に切断した形状をなして構成する。   The first light emitting unit 15 includes the LED 11 and the lens body 12 as described above, the two left and right light source units 13 having the above-described light distribution characteristics, and the left and right units disposed corresponding to the two light source units, respectively. It comprises two reflectors 14. The two reflectors 14 are formed by cutting a trumpet-like reflector having a reflecting surface 14a that forms a substantially paraboloid into a half cut with respect to the optical axis yy of the reflector.

第１発光部１５は、ＬＥＤ１１を点灯すると反射体１４により、図９に示すような配光特性をもって出射面１２ｂから光を出射する。   When the LED 11 is turned on, the first light emitting unit 15 emits light from the emission surface 12b with the light distribution characteristic as shown in FIG.

すなわち、図８に示す光源部１３の両側の補助配光Ｂ、Ｂが主配光Ａに重畳するように反射させ、主配光を光軸ｏ−ｏ方向に延長させる配光Ｃが得られる（図９）。   That is, the auxiliary light distribution B, B on both sides of the light source unit 13 shown in FIG. 8 is reflected so as to be superimposed on the main light distribution A, and a light distribution C that extends the main light distribution in the optical axis oo direction is obtained. (FIG. 9).

第２発光部１７は、上記のようにＬＥＤ１１とレンズ体１２で構成され上記の配光特性を有する左右２個の光源部１３と、２個の光源部にそれぞれ対応して配設される左右２個の反射体１６とで構成する。２個の反射体１６は、反射面１６ａの断面形状が緩やかな円弧状をなす略平板状の反射板で構成する。   The second light emitting unit 17 includes the LED 11 and the lens body 12 as described above, the left and right two light source units 13 having the above-described light distribution characteristics, and the left and right units respectively disposed corresponding to the two light source units. It is composed of two reflectors 16. The two reflectors 16 are constituted by substantially flat reflectors in which the cross-sectional shape of the reflecting surface 16a forms a gentle arc shape.

第２発光部１７は、ＬＥＤ１１を点灯すると反射体１６により、図１０に示すような配光特性をもって出射面１２ｂから光を出射する。   When the LED 11 is turned on, the second light emitting unit 17 emits light from the emission surface 12b with the light distribution characteristic as shown in FIG.

すなわち、図８に示す光源部１３の補助配光Ｂの一部を他方の補助配光Ｂ側に反射させ、主配光Ａと補助配光Ｂとの間をさらに補う配光Ｄが得られる（図１０）。   That is, a part of the auxiliary light distribution B of the light source unit 13 shown in FIG. 8 is reflected to the other auxiliary light distribution B side, and a light distribution D that further supplements the space between the main light distribution A and the auxiliary light distribution B is obtained. (FIG. 10).

なお、第１発光部１５と第２発光部１７を構成する光源部１３は同様の性能、配光特性等を有する共通の部品からなるＬＥＤ１１およびレンズ体１２で構成される。   In addition, the light source part 13 which comprises the 1st light emission part 15 and the 2nd light emission part 17 is comprised by LED11 and the lens body 12 which consist of common components which have the same performance, a light distribution characteristic, etc.

上記に構成された第１発光部１５および第２発光部１７は、支持体２１に次のようにして配設される。すなわち、支持体は細長い箱状をなし、その両側に、斜め上方に向かい傾斜した支持部２１ａ、２１ａを一体に形成し、この支持部にそれぞれ第１発光部１５の光源部１３の基板１１ａを嵌合し接着して支持する。さらに第１発光部１５の２個の反射体１４は、それぞれの支持部２１ａの上方に回転放物面の光軸ｙ−ｙとＬＥＤ１１の光軸ｏ−ｏとが略一致するように反射面１４ａが上方から被さるように位置させて一体に形成する（図７）。   The 1st light emission part 15 and the 2nd light emission part 17 which were comprised above are arrange | positioned at the support body 21 as follows. That is, the support has an elongated box shape, and support portions 21a and 21a inclined obliquely upward are integrally formed on both sides thereof, and the substrate 11a of the light source unit 13 of the first light emitting unit 15 is formed on each of the support portions. Fit and adhere to support. Further, the two reflectors 14 of the first light-emitting portion 15 are reflective surfaces so that the optical axis yy of the paraboloid of revolution and the optical axis oo of the LED 11 substantially coincide with each other above the support portions 21a. 14a is formed so as to cover from above (FIG. 7).

支持体２１の底面の略中央部に、その両側に、斜め上方に向かい傾斜した支持部２１ｂ、２１ｂを一体に形成し、この支持部にそれぞれ第２発光部１７の光源部１３の基板１１ａを嵌合し接着して支持する。さらに第２発光部１７の２個の反射体１６は、支持部２１ｂの上方に円弧状の反射面１６ａがＬＥＤ１１の光軸ｏ−ｏと略直交する方向に位置させて一体に形成する（図７）。   Support portions 21b and 21b that are inclined obliquely upward are integrally formed on both sides of the support body 21 at the substantially central portion of the bottom surface, and the substrate 11a of the light source portion 13 of the second light emitting portion 17 is respectively formed on the support portions. Fit and adhere to support. Further, the two reflectors 16 of the second light emitting unit 17 are integrally formed above the support unit 21b such that the arc-shaped reflecting surface 16a is positioned in a direction substantially orthogonal to the optical axis oo of the LED 11 (FIG. 7).

なお、図中２２は断面が半円形の円弧をなす補助反射体で、第２発光部１７の２個の光源部１３および２個の反射体１６を、側面方向から覆うように位置させて支持体２１に一体に形成されている。   In the figure, reference numeral 22 denotes an auxiliary reflector having a semicircular arc in cross section, and the two light source parts 13 and the two reflectors 16 of the second light emitting part 17 are positioned so as to be covered from the side surface direction. It is formed integrally with the body 21.

また、第１発光部１５および第２発光部１７は、その中心線（ＬＥＤ１１の光軸ｏ−ｏ、レンズ体１２の光軸ｘ−ｘ、反射体１４、１６の光軸ｙ−ｙ）が支持体２１の中心線ｚ−ｚ上に位置させ、各発光部が略直線状に配置される（図５）。   Further, the first light emitting unit 15 and the second light emitting unit 17 have center lines (the optical axis oo of the LED 11, the optical axis xx of the lens body 12, and the optical axis yy of the reflectors 14 and 16). Each light emitting part is arranged on a substantially straight line so as to be positioned on the center line zz of the support 21 (FIG. 5).

また、支持体２１は、ＰＥＴ等の合成樹脂で一体に成形され、第１、第２発光部１５、１７の支持部２１ａ、２１ｂと各反射体１４、１６および補助反射体２２が一体に形成され、各反射体の反射面１４ａ、１６ａはアルミ蒸着等の手段で鏡面加工することにより構成される。   The support 21 is integrally formed of a synthetic resin such as PET, and the support portions 21a and 21b of the first and second light emitting portions 15 and 17 are formed integrally with the reflectors 14 and 16 and the auxiliary reflector 22. The reflecting surfaces 14a and 16a of the reflectors are configured by mirror finishing by means such as aluminum vapor deposition.

上記に構成された第１発光部１５および第２発光部１７を収容し配設するための器具本体１８は、長手方向の両側面および短手方向の両側面が互いに下方に向かって傾斜し、断面が略台形をなす箱状のカバー部材をなして形成され、底面および短手方向の両側面に開口部が形成されている。底面の開口部２３ａは、第２発光部１７の反射体１６および光源部１３に対向させた底面の略中央部分が開放する長方形状の開口を形成し、両側面の開口部２３ｂは、第１発光部１５の反射体１４および光源部１３に対向させた略半円形状の開口を形成する。開口部２３ａおよび両側面の開口部２３ｂの開口面に沿って、透明または半透明のガラスや合成樹脂等からなる透光性を有する透過性カバー２３ｃ、２３ｄ、２３ｄが嵌め込まれている。   The instrument main body 18 for housing and arranging the first light emitting unit 15 and the second light emitting unit 17 configured as described above is configured such that both side surfaces in the longitudinal direction and both side surfaces in the lateral direction are inclined downward with respect to each other. A box-shaped cover member having a substantially trapezoidal cross section is formed, and openings are formed on the bottom surface and both side surfaces in the lateral direction. The opening 23a on the bottom surface forms a rectangular opening in which the substantially central portion of the bottom surface facing the reflector 16 and the light source unit 13 of the second light emitting unit 17 is open, and the opening 23b on both side surfaces is the first opening 23b. A substantially semicircular opening facing the reflector 14 and the light source unit 13 of the light emitting unit 15 is formed. Translucent transparent covers 23c, 23d, and 23d made of transparent or translucent glass, synthetic resin, or the like are fitted along the opening surfaces of the opening 23a and the opening 23b on both side surfaces.

器具本体１８内には、第１発光部１５および第２発光部１７を支持した支持体２１を、支持体の中心線ｚ−ｚが器具本体１８の長手方向の中心線ｐ−ｐ上に位置し、さらに第１発光部１５および第２発光部１７が各開口部２３ａ、２３ｂに面するように位置させて支持体２１を収納し、取付部材２４を介して器具本体内に支持する（図３、図５）。   In the instrument main body 18, the support 21 that supports the first light emitting part 15 and the second light emitting part 17 is positioned on the center line pp in the longitudinal direction of the instrument main body 18. Further, the first light emitting unit 15 and the second light emitting unit 17 are positioned so as to face the respective openings 23a and 23b, and the support body 21 is accommodated and supported in the instrument main body through the attachment member 24 (see FIG. 3, FIG. 5).

これにより、第２発光部１７の光源部１３は、器具本体１８の底面の開口部２３ａの略中央部に面し、かつ各ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が鉛直線ｖ−ｖを中心にして左右に、本実施例では約５０°の角度Ｒ１を有して配置される。   Thereby, the light source unit 13 of the second light emitting unit 17 faces the substantially central portion of the opening 23a on the bottom surface of the fixture body 18, and the optical axis oo of each LED 11 (the optical axis xx of the lens body 12). ) Are arranged on the left and right with respect to the vertical line vv, with an angle R1 of about 50 ° in this embodiment.

また、第１発光部１５の光源部１３は、第２発光部１７の両側に第２発光部と略直線状をなし、第２光源部１７に対して器具本体の開口部２３ａの外側に配置され、半円形の開口部２３ｂに面し、かつ鉛直線ｖ−ｖに対し各ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が左右に、本実施例では約７０°の角度Ｒ２を有して配置され収容される。   The light source unit 13 of the first light emitting unit 15 is substantially linear with the second light emitting unit on both sides of the second light emitting unit 17, and is disposed outside the opening 23 a of the instrument body with respect to the second light source unit 17. The optical axis oo of each LED 11 (the optical axis xx of the lens body 12) faces to the left and right with respect to the vertical line v-v, and faces approximately 70 ° in this embodiment. Is disposed and accommodated at an angle R2.

さらに、透過性カバー２３ｃ、２３ｄ、２３ｄと、前記第１、第２発光部の光軸ｏ−ｏとが３０°〜９０°の角度を有して配置されている。本実施例では、透過性カバー２３ｃと、前記第２発光部１７の光軸ｏ−ｏとが約４０°の角度Ｒ３に配置され、透過性カバー２３ｄ、２３ｄと、前記第１発光部１５の光軸ｏ−ｏとが約９０°の角度Ｒ４に配置されており、透過性カバーの内面反射ロスを必要最小限に抑えている。   Further, the transmissive covers 23c, 23d, and 23d and the optical axes oo of the first and second light emitting units are arranged with an angle of 30 ° to 90 °. In the present embodiment, the transmissive cover 23c and the optical axis oo of the second light emitting unit 17 are disposed at an angle R3 of about 40 °, and the transmissive covers 23d and 23d and the first light emitting unit 15 The optical axis oo is disposed at an angle R4 of about 90 °, and the internal reflection loss of the transmissive cover is minimized.

バッテリ１９および停電時にバッテリからの直流電圧が入力されて各ＬＥＤ１１を点灯させる点灯装置２０は、器具本体１８の上面板２５の下面に支持され、上面板で器具本体上面の開口部を覆い塞ぐことで器具本体内の上部のスペースに設置され収容される。図中２６は、端子台である。   The battery 19 and the lighting device 20 that turns on each LED 11 when a DC voltage is input from the battery in the event of a power failure are supported on the lower surface of the upper surface plate 25 of the instrument body 18 and covers the opening on the upper surface of the instrument body with the upper surface plate. It is installed and accommodated in the upper space in the instrument body. In the figure, reference numeral 26 denotes a terminal block.

なお、器具本体１８、および上面板２５は、鉄板やアルミニウム等の金属で構成され、スポット溶接等の手段、若しくはアルミダイカストで箱状に組み立てられる。   In addition, the instrument main body 18 and the upper surface plate 25 are comprised with metals, such as an iron plate and aluminum, and are assembled in a box shape by means, such as spot welding, or aluminum die casting.

非常用の点灯装置２０は、図１２に示すように、点灯ユニット３０内に設けられている。点灯ユニットは、さらに充電回路３１、切換回路３２が設けられ、点検スイッチ３３および充電用モニター３４が配設されている。そして、充電回路３１に接続されている電源線３５、３５が導出され、この電源線は電源端子３６、３６を介して商用交流電源Ｖｓに接続されている。また、充電回路３１または点灯装置２０と電気的に接続されるリード線３７、３７が導出され、このリード線は、コネクタ３８およびヒューズＦ１を介してバッテリ１９に接続されている。さらに、点灯装置２０に接続されているランプ線３９、３９が導出されており、このランブ線は、第１発光部１５および第２発光部１７の各ＬＥＤ１１に接続されている。   The emergency lighting device 20 is provided in the lighting unit 30 as shown in FIG. The lighting unit is further provided with a charging circuit 31 and a switching circuit 32, and an inspection switch 33 and a charging monitor 34 are provided. Then, power lines 35 and 35 connected to the charging circuit 31 are led out, and the power lines are connected to a commercial AC power source Vs via power terminals 36 and 36. In addition, lead wires 37 and 37 electrically connected to the charging circuit 31 or the lighting device 20 are led out, and the lead wires are connected to the battery 19 via the connector 38 and the fuse F1. Furthermore, lamp lines 39 and 39 connected to the lighting device 20 are led out, and the lamp lines are connected to the LEDs 11 of the first light emitting unit 15 and the second light emitting unit 17.

充電回路３１は、バッテリ１９を充電するように構成されている。そして、バッテリが充電状態になると、充電用モニター３４が点灯する。切換回路３２は、停電時に、バッテリ１９と点灯装置２０が接続されるようにして、バッテリ電圧が点灯装置２０に人力されるように構成されている。また、点検スイッチ３３の引き紐４０を引っ張ると、点検スイッチ３３がバッテリ１９と点灯装置２０を接続するようにしている。これにより、停電時に、各ＬＥＤ１１が点灯することの確認がなされる。   The charging circuit 31 is configured to charge the battery 19. When the battery is charged, the charging monitor 34 is lit. The switching circuit 32 is configured such that the battery 19 is manually connected to the lighting device 20 so that the battery 19 and the lighting device 20 are connected during a power failure. When the pull string 40 of the inspection switch 33 is pulled, the inspection switch 33 connects the battery 19 and the lighting device 20. Thereby, it is confirmed that each LED 11 is lit during a power failure.

上記に構成された非常灯１０は、図３に示すように、廊下や通路等の天井面Ｔに沿って所定の間隔を有して複数台が直付けされ配線されて設置される。   As shown in FIG. 3, the emergency lights 10 configured as described above are installed with a plurality of units directly attached and wired along a ceiling surface T such as a corridor or a passage.

器具本体１８は、その長手方向、すなわち第１発光部１５と第２発光部１７を支持した支持体２１の中心線ｚ−ｚが、廊下や通路の長手方向の中心線上に位置するように設置する。これにより第１発光部１５と第２発光部１７の光源部１３が下方、すなわち床面に面し、かつ光源部１３の各光軸が廊下や通路の長手方向に略一致した状態で設置される。さらに引き紐４０が下方に引き出され、モニター３４が下面に臨んだ状態になる。   The instrument main body 18 is installed so that the longitudinal direction thereof, that is, the center line zz of the support 21 supporting the first light emitting unit 15 and the second light emitting unit 17 is located on the center line in the longitudinal direction of the corridor or the passage. To do. Thereby, the light source part 13 of the 1st light emission part 15 and the 2nd light emission part 17 is installed in the state which faced the downward, ie, floor surface, and each optical axis of the light source part 13 substantially corresponded to the longitudinal direction of the corridor or the passage. The Further, the pull string 40 is pulled out downward, and the monitor 34 faces the lower surface.

次に上記に構成され設置された非常灯１０の作用につき説明する。停電状態になると、非常用の点等装置２０にバッテリ１９から直流電圧が入力され、第１発光部１５および第２発光部１７の各ＬＥＤ１１が点灯される。   Next, the operation of the emergency light 10 constructed and installed as described above will be described. When a power failure occurs, a DC voltage is input from the battery 19 to the emergency point device 20 and the LEDs 11 of the first light emitting unit 15 and the second light emitting unit 17 are turned on.

第１発光部１５の各ＬＥＤ１１を点灯すると、それぞれのレンズ体１２の入射面１２ａにＬＥＤ１１からの放射光が入射される。そして、ＬＥＤ１１からの放射光は、凸レンズをなす出射面１２ｂから放射されて、それぞれ器具本体１８の側面の開口部２３ｂに設けられた透過性カバー２３ｄを通過して出射される。そして、開口部２３ｂから出射された光は、それぞれ図８に示す長手方向に伸び主配光Ａを形づくる。同時に残部の一部が出射面１２ｂで屈折され主配光とは異なる方向に光度ピークを有する主配光Ａの出射端から両側斜め方向に沿う補助配光Ｂ、Ｂとに分離した状態で出射面１２ｂから出射される補助配光Ｂを形成する。   When each LED 11 of the first light emitting unit 15 is turned on, the emitted light from the LED 11 is incident on the incident surface 12 a of each lens body 12. And the radiated light from LED11 is radiated | emitted from the output surface 12b which makes a convex lens, and each radiate | emits through the transparent cover 23d provided in the opening part 23b of the side surface of the instrument main body 18. And the light radiate | emitted from the opening part 23b each extends in the longitudinal direction shown in FIG. 8, and forms the main light distribution A. As shown in FIG. At the same time, a part of the remaining part is refracted by the emission surface 12b and is emitted in a state of being separated into auxiliary light distributions B and B along diagonal directions on both sides from the emission end of the main light distribution A having a luminous intensity peak in a direction different from the main light distribution. The auxiliary light distribution B emitted from the surface 12b is formed.

これら主配光Ａと補助配光Ｂ、Ｂを形成する光の略上半分の光束が反射体１４で反射され、補助配光Ｂ、Ｂが主配光Ａ側に重畳するように反射させて主配光を光軸方向に延長させる。これにより、図９に示すような主配光を光軸方向に延長させる配光Ｃが得られる。この配光Ｃを形成する光は、ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が鉛直線に対し約７０°の角度Ｒ２を有して下向きに配置されているので、器具本体１８の両側から遠ざかっている床面が照明される。すなわち、器具本体１８の両側に配設された第１発光部１５から左右方向に略同様の配光Ｃを持って放射される。換言すれば、設置した器具の両側、すなわち、廊下や通路の奥側と手前側の長手方向に沿って略同様の配光Ｃを持って放射される。   The substantially upper half of the light forming the main light distribution A and the auxiliary light distributions B and B is reflected by the reflector 14 and reflected so that the auxiliary light distributions B and B are superimposed on the main light distribution A side. Extend the main light distribution in the direction of the optical axis. Thereby, the light distribution C which extends the main light distribution in the optical axis direction as shown in FIG. 9 is obtained. The light forming this light distribution C is arranged downward with the optical axis oo of the LED 11 (the optical axis xx of the lens body 12) having an angle R2 of about 70 ° with respect to the vertical line. The floor surface away from both sides of the instrument body 18 is illuminated. In other words, the light is emitted from the first light emitting portions 15 disposed on both sides of the instrument body 18 with substantially the same light distribution C in the left-right direction. In other words, the light is emitted with substantially the same light distribution C along both sides of the installed instrument, that is, along the longitudinal direction of the back side and the front side of the corridor or passage.

同時に第２発光部１７の各ＬＥＤ１１が点灯すると、第１発光部１５と同様に、それぞれのレンズ体１２の入射面１２ａにＬＥＤ１１からの放射光が入射される。そして、ＬＥＤ１１からの放射光は、凸レンズをなす出射面１２ｂから放射されて、それぞれ器具本体１８の底面の開口部２３ａに設けられた透過性カバー２３ｃを通過して出射される。そして、開口部２３ａから出射された光は、それぞれ図８に示す長手方向に伸び主配光Ａを形成する。同時に残部の一部が出射面１２ｂで屈折され主配光とは異なる方向に光度ピークを有する主配光Ａの出射端から両側斜め方向に沿う補助配光Ｂ、Ｂとに分離した状態で出射面１２ｂから出射される補助配光Ｂを形成する。   At the same time, when each LED 11 of the second light emitting unit 17 is turned on, the emitted light from the LED 11 is incident on the incident surface 12 a of each lens body 12, similarly to the first light emitting unit 15. And the radiated light from LED11 is radiated | emitted from the output surface 12b which makes | forms a convex lens, and each radiate | emits through the transparent cover 23c provided in the opening part 23a of the bottom face of the instrument main body 18. And the light radiate | emitted from the opening part 23a is extended in the longitudinal direction shown in FIG. 8, respectively, and forms the main light distribution A. FIG. At the same time, a part of the remaining part is refracted by the emission surface 12b and is emitted in a state of being separated into auxiliary light distributions B and B along diagonal directions on both sides from the emission end of the main light distribution A having a luminous intensity peak in a direction different from the main light distribution The auxiliary light distribution B emitted from the surface 12b is formed.

なお、第１、第２発光部１５、１７の光源部１３を構成するＬＥＤ１１およびレンズ体１２は、同様の性能、特性等を有する共通の部品からなっており、図８に示すような略同様の配光を形成する。   The LED 11 and the lens body 12 constituting the light source unit 13 of the first and second light emitting units 15 and 17 are made of common parts having similar performance, characteristics, etc., and are substantially the same as shown in FIG. Form a light distribution.

これら主配光Ａと補助配光Ｂを形成する光の略上半分の光束が反射体１６で反射され、補助配光Ｂの一方を他方の補助配光Ｂ側に反射させ主配光Ａを光軸方向と略直交する方向に延長させる。これにより、図１０に示すような補助配光Ｂの一部を他方の補助配光Ｂ側に反射させ主配光Ａと補助配光Ｂとの間をさらに補う配光Ｄが得られる。この配光Ｄを含む光は、ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が鉛直線に対し約５０°の角度Ｒ１を有して下向きに配置されているので、器具本体１８の底面から器具直下周辺部の床面が照明され、直下の照度（明るさ）が確保される。すなわち、器具本体１８の略中央部に配設された第２発光部１７から左右方向に略同様の配光Ｄを含む光を持って放射される。換言すれば、設置した器具の略直下において両側、すなわち、廊下や通路の奥側と手前側に略同様の配光Ｄを含む光を持って放射される。   A light beam in the upper half of the light that forms the main light distribution A and the auxiliary light distribution B is reflected by the reflector 16, and one of the auxiliary light distributions B is reflected to the other auxiliary light distribution B side so that the main light distribution A is reflected. Extend in a direction substantially perpendicular to the optical axis direction. Thereby, a part of the auxiliary light distribution B as shown in FIG. 10 is reflected to the other auxiliary light distribution B side to obtain a light distribution D that further supplements the space between the main light distribution A and the auxiliary light distribution B. The light including this light distribution D is disposed downward with the optical axis oo of the LED 11 (the optical axis xx of the lens body 12) having an angle R1 of about 50 ° with respect to the vertical line. The floor surface immediately below the appliance is illuminated from the bottom surface of the appliance body 18, and the illuminance (brightness) immediately below is ensured. In other words, the light is emitted from the second light emitting unit 17 disposed substantially at the center of the instrument main body 18 with light including substantially the same light distribution D in the left-right direction. In other words, light is emitted with light including substantially the same light distribution D on both sides, that is, the back side and the near side of the corridor or passage, just below the installed device.

同時に第１、第２発光部の２個の光源部１３および第１、第２発光部の２個の反射体１６を側面方向から覆う補助反射体２２により、側方に漏れた補助配光Ｂの一部の光も反射させて配光Ｄをより一層確実に作り出す。   At the same time, the auxiliary light distribution B leaked laterally by the two light sources 13 of the first and second light emitting units and the auxiliary reflector 22 covering the two reflectors 16 of the first and second light emitting units from the side surface direction. The light distribution D is more reliably generated by reflecting a part of the light.

さらに、同時に上記配光Ｃ、および配光Ｄを含む光を放射する第１、第２発光部１５、１７の両者の配光が組み合わされて、廊下や通路の床面には、図１１に示すような照度分布が得られる。すなわち、図１１に示す照度分布図は、本実施例の非常灯１０を約１５ｍ間隔で設置したものであり、通路幅約６ｍの通路の約２ｍの範囲において、器具の設置場所に近い部分に６ｌｘ〜２ｌｘの明るい部分が分布し、さらに長手方向に向かう器具設置間の略中央部分（最も光が不足する位置）にも４ｌｘ〜２ｌｘの明るい部分が分布する。これにより、器具の両側から廊下や通路のそれぞれの長手方向に沿う照明領域の床面が非常灯として必要な１１ｘ以上の明るさで、十分でかつ確実に所定の明るさを確保することができる。   Furthermore, the light distributions of the first and second light emitting units 15 and 17 that simultaneously emit light including the light distribution C and the light distribution D are combined, and the floor surface of the corridor or passage is shown in FIG. Illuminance distribution as shown is obtained. That is, the illuminance distribution diagram shown in FIG. 11 is obtained by installing the emergency lights 10 of the present embodiment at intervals of about 15 m, and in a range of about 2 m of a passage having a passage width of about 6 m, a portion close to the place where the appliance is installed. A bright portion of 6 lx to 2 lx is distributed, and a bright portion of 4 lx to 2 lx is also distributed in a substantially central portion (a position where light is most deficient) between the instrument installations in the longitudinal direction. Thereby, the floor surface of the illumination area along the longitudinal direction of the corridor or the passage from both sides of the appliance can secure a predetermined brightness sufficiently and reliably with a brightness of 11x or more necessary as an emergency light. .

この結果、従来品では通常約１０ｍ間隔で設置されている器具の設置間隔を約１５ｍにすることが可能となり、非常灯の設置台数を少なくすることができる。   As a result, in the conventional product, it is possible to set the installation interval of the instruments that are usually installed at an interval of about 10 m to about 15 m, and the number of emergency lights installed can be reduced.

以上、本実施例の非常灯１０によれば、第１発光部１５において、光源部１３で形成される補助配光Ｂ、Ｂが反射体１４で主配光Ａに重畳するように反射させて主配光を光軸方向に延長させた配光Ｃを形成し、器具本体１８の両側から遠ざかっている床面が照明される配光特性を構成し、第２発光部１７において、光源部１３で形成される補助配光Ｂの一部を反射体１６により他方の補助配光Ｂ側に反射させ、主配光Ａと補助配光Ｂとの間をさらに補う配光Ｄを形成し、器具本体１８の底面から器具直下周辺部の床面が照明される配光特性を構成し、これら、第１、第２の発光部１５、１７で構成された配光Ｃおよび配光Ｄを含む光を組み合わせることにより、器具本体１８の両側から遠ざかっている床面に第１の光度ピークを、また器具直下周辺部の床面に第２の光度ピークを、それぞれ形成したので、器具の両側から廊下や通路のそれぞれの長手方向に沿う照明領域の床面が十分で、かつ確実に所定の明るさを確保することができる。   As described above, according to the emergency light 10 of the present embodiment, in the first light emitting unit 15, the auxiliary light distributions B and B formed by the light source unit 13 are reflected by the reflector 14 so as to be superimposed on the main light distribution A. A light distribution C obtained by extending the main light distribution in the optical axis direction is formed, and a light distribution characteristic in which the floor surface away from both sides of the instrument body 18 is illuminated is configured. A part of the auxiliary light distribution B formed in step S1 is reflected by the reflector 16 toward the other auxiliary light distribution B to form a light distribution D that further supplements the space between the main light distribution A and the auxiliary light distribution B. A light distribution characteristic in which the floor surface immediately below the fixture is illuminated from the bottom surface of the main body 18 and includes the light distribution C and the light distribution D configured by the first and second light emitting units 15 and 17. In combination with the first luminous intensity peak on the floor surface away from both sides of the instrument body 18 and the instrument directly. Since the second luminous intensity peak was formed on the floor of the peripheral part, the floor surface of the lighting area along the longitudinal direction of the corridor and the passage from both sides of the appliance was sufficient and surely secured the predetermined brightness can do.

また、第１発光部１５の光源部１３を構成する各ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が鉛直線ｖ−ｖに対し約７０°の角度Ｒ２を有して下向きに配置されているので、器具本体１８の両側から遠ざかっている床面に第１の光度ピークを確実の構成することができる。また第２発光部１７の光源部１３を構成する各ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が鉛直線ｖ−ｖに対し約５０°の角度Ｒ１を有して下向きに配置されているので、器具直下周辺部の床面に第２の光度ピークを確実に構成することができる。同時に補助反射体２２により、側方に漏れた補助配光Ｂの一部の光も反射させて、より一層確実に第２の光度ピークを構成する。これら所定の角度で下向きに配置された第１、第２発光部１５、１７を組み合わせることにより、器具の両側から廊下や通路のそれぞれの長手方向に沿う照明領域の床面がより十分で、かつより一層確実に所定の明るさを確保することができる。   Further, the optical axis oo of each LED 11 constituting the light source unit 13 of the first light emitting unit 15 (the optical axis xx of the lens body 12) has an angle R2 of about 70 ° with respect to the vertical line vv. Therefore, the first luminous intensity peak can be surely configured on the floor surface away from both sides of the instrument body 18. Further, the optical axis oo of each LED 11 constituting the light source unit 13 of the second light emitting unit 17 (the optical axis xx of the lens body 12) has an angle R1 of about 50 ° with respect to the vertical line vv. Since it is arrange | positioned downward, a 2nd luminous intensity peak can be comprised reliably on the floor surface of the peripheral part right under an instrument. At the same time, the auxiliary reflector 22 reflects a part of the auxiliary light distribution B leaked to the side, so that the second luminous intensity peak is more reliably formed. By combining the first and second light emitting portions 15 and 17 disposed downward at these predetermined angles, the floor surface of the illumination area along the longitudinal direction of the corridor and the passage from both sides of the appliance is more sufficient, and The predetermined brightness can be ensured even more reliably.

これらにより、非常灯の設置間隔を大幅に広くすることができ、非常灯の設置台数を少なくすることが可能となって設置費用の大幅な削減が可能となり、商品競争力に優れた非常灯を提供することができる。   As a result, the installation interval of emergency lights can be greatly widened, the number of emergency lights installed can be reduced, and installation costs can be greatly reduced. Can be provided.

第１、第２発光部１５、１７の光源部１３を構成する各ＬＥＤ１１およびレンズ体１２は、同様の性能、特性等を有する共通の部品で構成したので、各発光部における光学特性にバラツキがなく性能のよい非常灯を構成することができる。また、ＬＥＤ１１、レンズ体１２および反射体１４、１６で構成される光学部品は、支持体２１に一体に組み込み、または一体に成形して構成したので、光学系に狂いが生じ難くなり一層高性能の非常灯を提供することができる。   Since each LED 11 and lens body 12 constituting the light source unit 13 of the first and second light emitting units 15 and 17 are configured by common parts having the same performance, characteristics, etc., there are variations in optical characteristics in each light emitting unit. An emergency light with good performance can be configured. In addition, since the optical component composed of the LED 11, the lens body 12, and the reflectors 14 and 16 is integrally incorporated in the support body 21 or integrally molded, the optical system is less likely to be out of order, and higher performance is achieved. Can provide emergency lights.

また、比較的高価な電子部品であるＬＥＤ１１やレンズ体１２を共通の部品とし、合成樹脂で支持体２１に一体に構成することが可能な比較的安価な反射体１４、１６により、光制御を行うようにしたので、コスト的に有利な非常灯を提供することができる。   Further, the LED 11 and the lens body 12 which are relatively expensive electronic parts are used as common parts, and the light control is performed by the relatively inexpensive reflectors 14 and 16 which can be integrated with the support body 21 with synthetic resin. Since this is done, an emergency light that is advantageous in terms of cost can be provided.

また、第１、第２発光部１５、１７の光源部１３を、上記のように各ＬＥＤ１１の光軸ｏ−ｏ（レンズ体１２の光軸ｘ−ｘ）が鉛直線に対しそれぞれ約７０°と約５０°の角度Ｒ１、Ｒ２を有して下向きに配置し、かつ、透過性カバーと第１、第２発光部１５、１７の光軸ｏ−ｏとが３０°〜９０°の角度を有して配置されているので、器具本体１８の開口部２３ａ、２３ｂにおける透過性カバー２３ｃ、２３ｄの内面反射ロスを必要最小限に抑えることが可能となり、高効率な非常灯を提供することができる。   Further, the light source unit 13 of the first and second light emitting units 15 and 17 is configured so that the optical axis oo of each LED 11 (the optical axis xx of the lens body 12) is about 70 ° with respect to the vertical line as described above. And an angle of 30 ° to 90 ° between the transmissive cover and the optical axes oo of the first and second light emitting portions 15 and 17. Therefore, it is possible to minimize the internal reflection loss of the transmissive covers 23c and 23d at the openings 23a and 23b of the instrument body 18, and to provide a highly efficient emergency light. it can.

以上、本実施例の照明装置において、第１、第２発光部１５、１７を支持する支持体２１は合成樹脂で構成したが、アルミダイカスト等の金属で構成してもよい。この場合ＬＥＤ１１が実装される回路基板１１ａは別途の電気絶縁性を有する基盤を介して支持体２１に支持し電気絶縁性を図る。これによれば、ＬＥＤ１１から発生する熱は、効率的にアルミニウムからなる支持体２１に伝達され外気中に放熱することができる。また第１、第２発光部１５、１７の反射体１４、１６は、一体に形成されしかも格別な鏡面加工を施すことなく構成することができる。   As described above, in the illumination device of the present embodiment, the support 21 that supports the first and second light emitting units 15 and 17 is made of synthetic resin, but may be made of metal such as aluminum die casting. In this case, the circuit board 11a on which the LEDs 11 are mounted is supported on the support 21 via a separate base having electrical insulation to achieve electrical insulation. According to this, the heat which generate | occur | produces from LED11 can be efficiently transmitted to the support body 21 which consists of aluminum, and can be thermally radiated in outside air. In addition, the reflectors 14 and 16 of the first and second light emitting portions 15 and 17 can be formed integrally and without performing special mirror finishing.

器具本体１８は鉄板等の金属で構成したが、不燃性の合成樹脂で一体に箱状に構成してもよい。また器具本体１８を円筒状に構成して天井埋込形の非常灯を構成してもよい。   The instrument body 18 is made of a metal such as an iron plate, but may be made of a nonflammable synthetic resin in a box shape. Further, the appliance main body 18 may be formed in a cylindrical shape to constitute a ceiling-embedded emergency light.

第１、第２発光部１５、１７を器具本体１８の両側に、それぞれ一対配設して構成し、器具の両側を長手方向に沿って照明するように構成したが、片側に第１発光部を１個、第２発光部を１個それぞれ配設し、片側の長手方向に沿って照明する非常灯を構成し、直下に壁面を有し片側のみを照明する環境に好適な非常灯として使用する。   A pair of first and second light-emitting portions 15 and 17 are arranged on both sides of the instrument body 18 so as to illuminate both sides of the instrument along the longitudinal direction, but the first light-emitting portion is arranged on one side. 1 and a second light-emitting part are arranged, respectively, to construct an emergency light that illuminates along the longitudinal direction of one side, and is used as an emergency light suitable for an environment that has a wall directly underneath and illuminates only one side To do.

本実施例は、廊下や通路の天井に設置される照明器具を構成したもので、図１３に従いその構成を説明する。   In the present embodiment, a lighting fixture installed in the ceiling of a corridor or a passage is configured, and the configuration will be described with reference to FIG.

なお、図１３には、実施例１における図１〜図１２と同一部分に同一の符号を付してその詳細な説明は省略する。   In FIG. 13, the same parts as those in FIGS. 1 to 12 in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

本実施例の照明器具は、図１３に示すように、実施例１の非常灯１０において、バッテリ１９および点灯ユニット３０が取り除かれ、代わって点灯装置５０が配設された天井直付け形の照明器具６０である。   As shown in FIG. 13, the lighting fixture of the present embodiment is a ceiling-mounted illumination in which the battery 19 and the lighting unit 30 are removed from the emergency light 10 of the first embodiment, and the lighting device 50 is disposed instead. Instrument 60.

点灯装置５０は、商用電源Ｖｓに接続され交流電圧を直流電圧に変換すると共に、電圧調整を行って各ＬＥＤ１１を点灯させる。   The lighting device 50 is connected to the commercial power source Vs, converts an alternating voltage into a direct voltage, and performs voltage adjustment to light each LED 11.

第１、第２発光部１５、１７の光源部１３における各ＬＥＤ１１は、照明器具としての所定の明るさを得るために、図１３（ｂ）（ｃ）に示すように、複数個、本実施例では３個のＬＥＤ１１により点モジュールを形成するように円板状の基板に実装して構成し、この点モジュールに適合した寸法、形状のレンズ体１２の入射面１２ａに組み込んで光源体１３を構成し、第１、第２発光部１５、１７の共通の光源部として使用する。   As shown in FIGS. 13B and 13C, a plurality of LEDs 11 in the light source unit 13 of the first and second light emitting units 15 and 17 are used in order to obtain a predetermined brightness as a lighting fixture. In the example, the LED module is mounted on a disk-like substrate so as to form a point module with three LEDs 11, and the light source body 13 is incorporated into the incident surface 12a of the lens body 12 having a size and shape suitable for the point module. It is configured and used as a common light source unit for the first and second light emitting units 15 and 17.

本実施例の照明器具は、第１、第２発光部１５、１７の各ＬＥＤ１１の点灯により、器具本体１８の両側から遠ざかっている床面に第１の光度ピークが、また器具直下周辺部の床面に第２の光度ピークがそれぞれ形成され、器具の両側から廊下や通路のそれぞれの長手方向に沿う照明領域の床面が十分な所定の明るさをもって照明することができる。   The lighting fixture of the present embodiment has the first luminous intensity peak on the floor surface away from both sides of the fixture main body 18 by the lighting of the LEDs 11 of the first and second light emitting portions 15 and 17, and the peripheral portion directly below the fixture. Second light intensity peaks are respectively formed on the floor surface, and the floor surface of the illumination area along the longitudinal direction of the corridor or the passage from both sides of the appliance can be illuminated with sufficient predetermined brightness.

本実施例の照明器具においても、天井埋め込み形のダウンライトを構成するようにしてもよい。その他、本実施例における他の構成、作動、作用効果、変形例等は、実施例１と同様である。   Also in the lighting apparatus of the present embodiment, a ceiling-embedded downlight may be configured. Other configurations, operations, operational effects, modifications, and the like in this embodiment are the same as those in the first embodiment.

以上、本発明の好適な実施形態を説明したが、本発明は上述の各実施例に限定されることなく、本発明の要旨を逸脱しない範囲内において、種々の設計変更を行うことができる。   The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

本発明の第一の実施形態に係る非常灯を示し、器具本体のカバー部材を外した状態を示す斜視図。The perspective view which shows the emergency light which concerns on 1st embodiment of this invention, and shows the state which removed the cover member of the instrument main body. 同じく非常灯を示す斜視図。The perspective view which similarly shows an emergency light. 同じく非常灯を示す図５Ａ−Ａ線に沿う断面図。Sectional drawing which follows FIG. 5A-A which similarly shows an emergency light. 同じく非常灯を示し、（ａ）は光源部を拡大して示す断面図、（ｂ）は第１発光部の光源部を示す正面図、（ｃ）は第２発光部の光源部を示す正面図。Similarly, an emergency light is shown, (a) is an enlarged sectional view showing the light source part, (b) is a front view showing the light source part of the first light emitting part, and (c) is a front view showing the light source part of the second light emitting part. Figure. 同じく非常灯を示す下面図。The bottom view which similarly shows an emergency light. 同じく非常灯を示す側面図。The side view which similarly shows an emergency light. 同じく非常灯の第１、第２発光部の光源部を下面側からから見た斜視図。Similarly the perspective view which looked at the light source part of the 1st, 2nd light emission part of an emergency light from the lower surface side. 同じく非常灯の光源部の配光特性図。Similarly the light distribution characteristic figure of the light source part of an emergency light. 同じく非常灯の第１発光部の配光特性図。Similarly the light distribution characteristic figure of the 1st light emission part of an emergency light. 同じく非常灯の第２発光部の配光特性図。Similarly the light distribution characteristic figure of the 2nd light emission part of an emergency light. 同じく非常灯を通路に設置し、点灯した状態における床面の照度分布図。Similarly, an illuminance distribution map of the floor surface when an emergency light is installed in the passage and is lit. 同じく非常灯の内部配線図。Similarly, the internal wiring diagram of the emergency light. 本発明の第二の実施形態に係る照明器具を示し、（ａ）は図３に相当する照明器具の断面図、（ｂ）は第１発光部の光源部を示す正面図、（ｃ）は第２発光部の光源部を示す正面図。The lighting fixture which concerns on 2nd embodiment of this invention is shown, (a) is sectional drawing of the lighting fixture corresponded in FIG. 3, (b) is a front view which shows the light source part of a 1st light emission part, (c) is. The front view which shows the light source part of a 2nd light emission part.

符号の説明Explanation of symbols

１０ 非常灯
１１ 半導体発光素子
１２ レンズ体
１２ａ 入射面
１２ｂ 出射面
Ａ 主配光
Ｂ 補助配光
１３ 光源部
１４ 反射体
１５ 第１発光部
１６ 反射体
１７ 第２発光部
１８ 器具本体
１９ バッテリ
２０ 点灯装置
２３ａ、２３ｂ 開口部
２３ｃ、２３ｄ 透過性カバー
６０ 照明器具
DESCRIPTION OF SYMBOLS 10 Emergency light 11 Semiconductor light-emitting element 12 Lens body 12a Incident surface 12b Outgoing surface A Main light distribution B Auxiliary light distribution 13 Light source part 14 Reflector 15 1st light emission part 16 Reflector 17 2nd light emission part 18 Instrument main body 19 Battery 20 Lighting Device 23a, 23b Opening 23c, 23d Transparent cover 60 Lighting fixture

Claims (4)

半導体発光素子と、入射面および出射面を有し、入射面に入射する半導体発光素子の放射光を、光軸方向に沿う主配光と主配光とは異なる方向に光度ピークを有する補助配光とに分離した状態で出射面から出射されるように形成されるレンズ体からなる光源部と；
前記光源部と、光源部の補助配光が主配光に重畳するように反射させ主配光を光軸方向に延長させる反射体からなる第１発光部と；
前記光源部と、光源部の補助配光の一部を他方の補助配光側に反射させる反射体からなる第２発光部と；
開口部を有し、この開口部に第１発光部および第２発光部を略直線状に配置し、照射面の長手方向に対して少なくとも第１発光部の主配光が第２発光部の主配光よりも外側に位置するように配設した器具本体と；
前記半導体発光素子を点灯させる点灯装置と；
を具備することを特徴とする照明器具。 A semiconductor light emitting device and an incident surface and an output surface, and the emitted light of the semiconductor light emitting device incident on the incident surface is an auxiliary distribution having a luminous intensity peak in a direction different from the main light distribution and the main light distribution along the optical axis direction. A light source portion comprising a lens body formed so as to be emitted from the emission surface in a state separated into light;
A first light-emitting unit made of a reflector that reflects the auxiliary light distribution of the light source unit so as to overlap the main light distribution and extends the main light distribution in the optical axis direction;
A second light-emitting unit made of a reflector that reflects a part of the auxiliary light distribution of the light source unit to the other auxiliary light distribution side;
The first light emitting unit and the second light emitting unit are arranged substantially linearly in the opening, and at least the main light distribution of the first light emitting unit with respect to the longitudinal direction of the irradiation surface is that of the second light emitting unit. An instrument body arranged to be located outside the main light distribution;
A lighting device for lighting the semiconductor light emitting element;
The lighting fixture characterized by comprising. 前記第２発光部は、器具本体の開口部の略中央部に鉛直線を中心にして左右に所定の角度を有して配置し、第１発光部は、第２発光部の両側に対して器具本体の開口部の外側に配置し、かつ鉛直線に対し左右に所定の角度を有して配置したことを特徴とする請求項１記載の照明器具。 The second light emitting unit is disposed at a substantially central portion of the opening of the instrument body with a predetermined angle on the left and right with a vertical line as a center, and the first light emitting unit is located on both sides of the second light emitting unit. The lighting fixture according to claim 1, wherein the lighting fixture is arranged outside the opening of the fixture main body and arranged at a predetermined angle to the left and right with respect to the vertical line. 前記開口部の開口面に沿って透過性カバーを有し、前記透過性カバーと、前記第１、第２発光部の光軸とが３０°〜９０°の角度を有して配置したことを特徴とする請求項１または２記載の照明器具。 A transparent cover is provided along the opening surface of the opening, and the transparent cover and the optical axes of the first and second light emitting units are arranged at an angle of 30 ° to 90 °. The lighting apparatus according to claim 1 or 2, characterized in that: 請求項１ないし３いずれか一記載の照明器具と；
器具本体に収容されたバッテリと；
停電時に、バッテリからの直流電圧が入力されて半導体発光素子を点灯させる非常用点灯装置と；
を具備することを特徴とする非常灯。
A lighting fixture according to any one of claims 1 to 3;
A battery housed in the instrument body;
An emergency lighting device that turns on the semiconductor light emitting element when a DC voltage is input from the battery in the event of a power failure;
An emergency light characterized by comprising:

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